The utility model relates to a hydroponic plant cultivation device structure.The system includes: a cultivation tank.It has a slot.The inner part is provided with a partition board to define a water storage area and a drainage area；The top of the partition board is provided with a cutting groove；1. First stop,It is provided at the top of one of the side walls and is located in the water storage area and extends inward for an appropriate length.The position of the first stopper is higher than the upper part of the bottom end of the cutting groove of the partition；And the first and second stop,It is set at the top of the other wall corresponding to the first stop and is located in the water storage area and extends inward for an appropriate length.The position of the second stop is lower than the upper part of the partition；And a cultivation bed,Located between the upper part of the first stop and the lower part of the second stop；And a plurality of cultivation areas are arranged in the cultivation bed system；In this way,When the cultivation bed is moved upward by water such as culture medium,It will be resisted by the first stop and the second stop.Let the water, such as culture medium, be discharged into the cutting groove of the partition and be discharged through the drainage area,When the water such as the culture medium cannot be discharged through the cutting groove of the partition,A space is formed between the cultivation bed and the water surface of the culture medium to achieve air convection discharge.Furthermore, the drainage can control the water level of the culture medium and solve the problems of air circulation at the same time.一種水耕植物栽培裝置結構，係包括：一栽培槽，具有一槽體，其內部係設有一隔板而界定出一儲水區與一排水區；該隔板其頂端係設有一剖槽；一第一擋止件，係設置於該其中一側壁其頂端且位於該儲水區而朝內延伸適當長度，該第一擋止件其位置係高於該隔板之剖槽底端其上方處；以及一第二擋止件，係與該第一擋止件呈對應狀態而設置於該另一側壁其頂端且位於該儲水區而朝內延伸適當長度，該第二擋止件其位置係低於該隔板其上方處；及一栽培床，係位於該第一擋止件其上方處與該第二擋止件其下方處間；並於該栽培床係設有複數個栽培區；藉此，當該栽培床受到培養液等水分而往上移動時，則會受到該第一擋止件與該第二擋止件其抵制，令培養液等水分洩至於該隔板之剖槽內而經由該排水區流放排出，當培養液等水分無法藉
